
		<p>
			Calculates the potential evapotranspiration using the Pristley-Taylor model. Two are the modes:</p>
		<ul>
			<li>
				with hourly time-step</li>
			<li>
				with daily time-step</li>
		</ul>
		<p>
			In the first case the model uses the ground heat flux (G) computed as function of net radiation. In the second case G is neglected.<br />
			<br />
			</p>
		<h3>
			Input files</h3>
		<ul>
			  
			<li>
				the .csv file (YYYY-MM-DD HH:MI, temperature) containing the temperatures time series. In case of no-values, a standard values of temperature is used (e.g. the mean annual temperature).</li>
			<li>
				the .csv file (YYYY-MM-DD HH:MI, net_radiation) containing the net radiation time series. In case of no-values, a standard values of radiation is used (e.g. the mean annual value)</li>
			<li>
				the .csv file (YYYY-MM-DD HH:MI, atm_pressure) containing the atmospheric pressure time series. In case of not-values, a standard values of atmospheric pressure is used (101.31 kPa)</li>
		</ul>
		<p>
			</p>
		<h3>
			Input Parameters</h3>
		<ul>
			<li>
				The value of the Pristley-Taylor constant</li>
			<li>
				The value of Gm: the morning coefficient multiplying net radiation to estimate G during the morning</li>
			<li>
				The value of Gn: the nigth coefficient multiplying net radiation to estimate G during the nigth</li>
		</ul>
		<h3>
			Output<span class="Apple-style-span" style="font-weight: normal; font-size: medium; ">  </span></h3>
		<ul>
			<li>
				the .csv file containing the potential evapotranspiration for every points selected for estimation</li>
		</ul>
		<h3>
			Notes</h3>
		<p>
			If you use the present model, the authors kindly ask to cite:</p>
		<p>
			Formetta,G., Mantilla,R., Franceschi,S., Antonello,A., and Rigon,R.: The JGrass-NewAge system for forecasting and managing the hydrological budgets at the basin scale: models of flow generation and propagation/routing, Geosci. Model Dev., 4, 943-955, doi:10.5194/gmd-4-943-2011, 2011.</p>
		<p>
			http://www.geosci-model-dev.net/4/943/2011/gmd-4-943-2011.html</p>
		<p>
			</p>
		<p>
			where the model is explained with more detail.</p>
		<p>
			</p>
		<p>
			</p>
